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ROBOTS AND ROBOTICS
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ROBOTICS



ROBOT TRAVELLER 1 MOTOR

This it is a relatively simple project, type is a robot to walker, that is to say that walks on four legs like an insect, he is why catalog as robot BEAM.  This robot is based on one similar designed by Canadian Jérôme Demers and has the following characteristics:

  • It follows principle K.I.S.S. (“Keep Simple It, Stupid? of the English That Is Simple and Stupid). This robot uses uses a simple control loop, a single actuator, and a single gear to create a traveller of four legs. 
  • Demuenstra the use of a popular circuit, the BEAM Bicore a circuit to timer of two nodes that a signal of control backwards and ahead between the nodes sends creating a movement ahead and back in the motor and the gears and therefore to the subject legs of wire to the gears.  


FIGURE
1:
AS THE FINISHED ROBOT SEES ITSELF ONCE AND WORKING

MATERIALS
This project requires materials that are not in the house but for the wire that is obtained from a clothes hanger. All the others are due to buy in a store specialized in electronics

LIST OF PARTS

  • (1) Servo motor of a hobby store
  • (1) Gear of plastic of 4cm
  • (1) 30 cm of wire of a clothes hanger or copper wire Not 10
  • (1) Tube of plastic of 1cm of diameter can be used the plastic of the wire to hang clothes
  • (1) Block of terminals
  • (2) Portapilas for batteries AAA each for two batteries
  • (1) Piece of tube of 1cm diameter
  • (2),22 µF capacitores monolithic
  • (1) 100K to 10M? resistor (we used one 3.2M)
  • (1) integrated Circuit 74HCT240   (IC)
  • (1) socket of 20-pins DIP IC

CONSTRUCTION IN FREE FORMAT
We will use intergado circuit 74HCT240. This chip is an investing buffer octal. Meaning that it is a chip with eight logical floodgates that invest the signals that arrive to them. Everything is reversed, then a low signal becomes a high signal and a high signal becomes a low signal. When combining the three floodgates in a side and the three across (welding pins or patitas of the chip).  the signal that happens backwards and forwards enters nodes both sends high and low pulses (or “on? and “in off?) to our servo motor. The result is an oscillating movement of the axis of the motor that transminte to the gears and of these to the legs done of heavy wire. 

In the photo the circuit constructed in breadboard can be seen are used capacitores of .22µF.


FIGURE 2: The circuit totally finished, are not the terminals of the motors.

FIGURE 3: Circuit finished in free and ready format to be used.

    AS THE PORTAPILAS ARE CONNECTED


FIGURE 4: As portapilas are connected so that the set provides 6 volts.

 

CONSTRUCTING THE BODY OF THE ROBOT

The body becomes from a servo motor that has several gears. If it is necessary modifies this. We notice that in that we used we placed a heavy copper wire to him in the part of down.

walker_img_121.jpg (30315 bytes)

 

A great gear cut by half is used half subjects to the axis of the servo motor and the other goes in the heavy wire. Both miatdes hold the wire legs.

walker_img_106.jpg (42505 bytes)

 

We notice down as the gears are placed

walker_img_138.jpg (31429 bytes)

The legs of wire to hang clothes

walker_img_154.jpg (50906 bytes)

Down one sees as the legs subject to the gear. The gear as well subjects to a plastic disc or another gear.

walker_img_169.jpg (28111 bytes)

As portapilas to the sides of the robot are due to place

walker_img_190.jpg (23822 bytes)

In the part down the complete circuit of the robot is seen walker

5b921330.gif (8763 bytes)


YOU WISH TO BUY THE PLANES OF THIS ROBOT WITH COMPLETE CIRCUITS, DRAWINGS AND PHOTOS AND THE EXPLANATION STEP BY STEP TO ARM THE FREE CIRCUIT. $US2 ONLY COSTS. - YOU CLICK IN THE BUTTON OF DOWN.











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